The United States Senate Committee on Commerce, Science, and Transportation is a standing committee of the United States Senate. Besides having broad jurisdiction over all matters concerning interstate commerce, science and technology policy, and transportation, the Senate Commerce Committee is one of the largest of the Senate's standing committees, with 28 members in the 117th Congress. The Commerce Committee has six subcommittees. It is chaired by Sen. Maria Cantwell (D-WA) with Sen. Ted Cruz (R-TX) as Ranking Member. The majority office is housed in the Dirksen Senate Office Building, and the minority office is located in the Hart Senate Office Building.